Gladness won the Ascot Gold Cup in 1958 but put up her best performance when running away with the Ebor Handicap two months later. Carrying top weight of 9st 7lb, the mare burst clear two furlongs out and won easing up by six lengths from Woodside Terrace, who received 29lb.

Her color was registered as "bay or brown".
This champion mare has left a trail of high class
stakes winners in later generations - Royal Gait, Overdose, Taj Eclipse, Fawkner.